The following sites will help you keep up with the races you are following. In addition to these, you should also be checking the main newspaper for the capitol of the state your race is in.
These sites provide data on races that could be important for researching political races.
Since 2022 is the first election after redistricting, many of our data sources will not have accurate district boundaries. You are looking for boundaries for the 118th Congress. This may make doing research on districts a bit trickier. Meet with Roz Tedford or Morgan Ritchie-Baum for help on doing data research on new districts!